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参数资料
| 型号： | ST72771N9B1 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP56 |
| 封装： | SHRINK, PLASTIC, DIP-56 |
| 文件页数： | 2/3页 |
| 文件大小： | 78K |
| 代理商： | ST72771N9B1 |
2/3
ST7277
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST7277 is a HCMOS microcontroller unit
(MCU) from the ST7 family with dedicated periph-
erals for Monitor applications.
It is based around an industry standard 8-bit core
and offers an enhanced instruction set. The proc-
essor runs with an external clock at 24 MHz with a
5V supply. Due to the fully static design of this de-
vice, operation down to DC is possible. Under soft-
ware control the ST7277 can be placed in WAIT or
HALT mode thus reducing power consumption.
The enhanced instruction set and addressing
modes afford real programming potential.
In addition to standard 8-bit data management the
ST7 features true bit manipulation, 8x8 unsigned
multiplication and indirect addressing modes.
The device includes an on-chip oscillator, CPU,
Sync Processor for video timing & Vfback analy-
sis, up to 60K ROM, up to 2K RAM, USB/DMA,
I/O, a timer with 2 input captures and 2 output
compares, an 8-channel Analog to Digital Convert-
er, DDC/DMA, I2C multi Master, SCI Serial Com-
munications Interface, Watchdog Reset, an Infra
Red Control preprocessor, and one 12-bit and
eight 10-bit PWM/BRM outputs for analog DC con-
trol of external functions.
Figure 1. ST7277 Block Diagram
AD
DRESS
A
ND
DATA
BUS
VSS
OSCIN
OSCOUT
RESET
ADC
USB SIE
PORT C
I2C
PORT D
DDC
DAC (PWM)
OSC
VDD
RAM
PORT B
PORT A
VR02120C
PA0-PA6
PB1-PB7/AIN1-AIN7
USBVCC
USBDP
USBDM
USGGND
PC0/OCMP/HFBACK
PC1/HSYNCI2
PC2/RX/SCLD
PC3/SDAD
PC4/SCLI
PC5/SDAI
PC6/RDI
PC7/TDO
PD1/HSYNCO
PD3/ITC
PD4/ITB
PD5/ITA
PD6/CLAMPOUT
POWER SUPPLY
DA0, DA1-DA8
PB0/VFBACK/AIN0
USB DMA
8-BIT CORE
ALU
CONTROL
WATCHDOG
Mode
Selection
:3
ROM/OTP/EPROM
Up to 60K Bytes
Up to 2K Bytes
HSYNCI1
VSYNCI1
INFRA-RED
IRIN
SYNC
PROCESSOR
PD7/VSYNCI2
PD0/CSYNCI
PD2/VSYNCO
PA7/BLANKOUT
SCI
TIMER
VSSA
VDDA
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